Soot-cleaner for steam-boilers.



W- J. BRADLEY;

SOOT CLEANER. FOR STEAM BOILERS.

APPLICATION FILED SEPT.28,1911.

3 7 42a 4 Pat'ented Sept. 3, 1912.

3 SHEETS-SHEET 1.

INVENTUFI WITNESSES: I

acldwc/ .wfl/Wb I AvWM t? a 1 M I ATTEIHNFY W. J. BRADLEY. SOOT CLEANERFOR STEAM BOILERS.

APPLICATION FILED SEPT. 28, 1911. v Q I Patented Sept. 3, 1912.

I SSHEETS-SHEET 2. R *W/A 'V/AL \Y/ /7R WH'NESEE (B 106 'A'TT'EIHNEY W.'J. BRADLEY. a SOOT CLEANER FOR STEAM BOILERS. APPLICATION FILED SEPT.28, 1911.

Patented Sept. 3, 1912.

3 SEEETS-SHEET 3.

- 'b\ r s,

A FUH EY WILLIAM J. BRADLEY, OF TROY, NEW YORK, ASSIGNOR TO MON'ARGHSTEAM J COMPANY, OF TROY, NEW YORK, A CORPORATION.

UNITED sTAtnEs .PATEn FFIo BLOWER soo'r-cLnAnEnnon STEAM-BOILERS.

Specification 01' Letters Patent.

Application filed September 28, 1911. Serial m5. 651,752.

To all whom it may concern:

Be it known that I, WILLIAM J. BRADLEY, a citizen of the United States,residing at Trey, county of Rensselaer, and State of New York, haveinvented certain new and. useful Improvements in Soot-Cleaners forSteam-Boilers, of which the following is a specification.

The invention relates to such improvements and consists of'the novelconstrue tion andccmbination of parts hereinafter described andsubsequently claimed. Reference may be had to the accompany; ingdrawings, and the ,reference characters marked thereon, .which form apart- 0f this Similar characters refer to similar parts in the severalfigures therein.

Figure 1 of the drawings is a view in side elevation showing myinvention ap plied to .a water-tube boiler,'t-he brickwork of theboiler-setting. being partly broken I away. Fig. 2 is a horizontalsection of the v same taken onthe broken line 2-9-2 in Fig.

1, along 'onefside of the boiler-setting. Fig.

.3 is a vertical cross-section taken throngh the axis of one ofthenozzle-carryingpipes showing at the upper end in det'ailthe selfsealingrotative connection between said pipe andthe steam-box from which-itreceives a supply of steam, and showin' at the lower end in detail thebearing or the lower end of said pipe and the gear whereby said pipeis.'rotated. Fig.... 4 i -is a crosssection taken on the broken line 4-4, in

Fig. 3, through the bearing-box for the lower end of a nozzle-carryingpipe,- showin a bottom-plan view of the lower end of the pipe and itsoperating-mechanism.

Fig. 5 is a cross-section taken on the broken line 5'5 in Fig. 3; Fig. 6is a cross section taken on. the broken line 6,6- .in Fig. 3, showing atop planview of the steam-box and its supply-pipe. 7 is a. view inverticalsectlon of the bearing for the lower pipe, showingend of, thenozzle-carrying the lower-portion of said pipe and opersting-mechanismin side elevation. I

I My. invention relates to atype 'of sootcleaner for steam-boilerswherein-jets. of

lively mountedgp'ipe 'whereby: said nozzles can be"int1;and out ofposition for use. In boilerwcleaners of this type, considerabledifliculty is experienced in operating the nozzle-carrying pipe and alsoin maintaining a steamor gas-tight rotative connection between thenozzle-carrying pipe and the steam-box from which the pipe is supplied,due to the excessive heat to which said pipe is exposed in the furnacestructure.

-,The present invention relates more articularlyto the mounting of suchpipes whereby their efficiency and operation are not affected by highdegrees of heator'by excessive changes in temperature. The principalobject of the invention is to provide for maximum expansion of such apipe and the parts cooperating therewith,

while maintaining a tight joint between the pipe and the'steam-boxwhereby it is supplied, as Well as full operative relationship betweensaid pipe and the mechanism whereby the same is rotated, v

The invention is'applicable to various typesgof steam-boilers and isparticularly adapted 'for use in water-tube boilers as shown intheaccompanying drawings.

Referring to the drawings wherein the invention 1s shown in preferredform, 1,

represents the brickwork setting for a water-tube "boiler having tubes,2, communicating at their opposite ends with water-legs, 3 and 4:, saidwater-legs con- 'nectingwith the cylinder, 5, in the usual manner.

The flue-space across which the watertubes' extend, is subdivided byvertical baf fle-plates, 6, into a plurality of sections, whereby heatedgases, in passing from the furnaceto the stack, are caused to cross theline of water-tubes in difi'erent directions. Housed-in the brickworksetting along the "side ofthe boiler oppositeeach of the sections intowhich the draft-space is thus subdivided, is a .pipe, .7,- which extendsin a vertical plane,'and is preferably inclined at approximately frightangles to the watertubes. The pipe, 7 is provided at intervals whichpreferably correspond with the intervals between neighboring rows ofwater-'- tubes,- with nozzles, 8, adapted in certain rotativepositionsof the pipe, 7, to direct jets of steamkor airissuing'therefrom more or less directlyfacros's the draft-space, andbetween and against v the water-tubes. The

' comprises a pipe, 7 is rotatively supported at its upper and lowerends by suitable bearings. The bearing for the upper end of the pipe, 7,balland-socket ground joint, one member, 9, of which is fixed'upon thetube, and the other member of which is formed by an interior annularshoulder, 10, onthe steam'-box,-11, surrounding an opening through whichthe tube, 7, extends. 'A free space is left within the steam-box abovethe bearing-members to permit maximum expansion of the parts, the jointbeing rendered effective wholly by gravity and the internal pressurewithin the steam-box. The steam-box is provided in its top in line withits bottom aperture through which the pipe, 7, extends, with a largeraperture, 12, adapted to freely permit the passage therethrough of thepipe, 7, and its bearingmember, 9, which opening -is closed by ascrew-plug, 13, which can be removed to permit the insertion or removalof the pipe.

The curved bearing-surfaces on the balland-socket members, 9 and 10, areground to accurately fit one another, whereby, for the purposes of thisinvention, they are adapted to form a ti ht" joint under the internalpressurewithin the steam-box in difierent rotary positions of the pipe,7, as well as in such difierent relative angular positions as thebearing-members may be caused to assume, due to deflection of the-pipeor unequal expansion of the parts when exposed to the high temperatureto which such pipes are subjected in. use. Thebearing for the lower endof the pipe, 7, is formed in a bearing-box, 14;, which is adapted torotatively support the pipe while freely permitting maximum expansion ofthesame. The bearing-member on the lower end of the pipe, 7, is formedby the cylindrical hub, 15, of the gear, 16, whereby rotary move mentsare lmparted to the pipe 7. The hub,

15, fits within an opening in the bearingbox, 14, through which openingit is adapted to reciprocate in accordance with variaopening in thebearing-box 14. The gear,-

tions in the length of the pipe, 7, due toexpansion and contraction. IThe teeth of the gear, 16, are confined within and preferably correspondwith the cylindrical dimensions of the hub, 15, whereby said gear isadapted to pass through and occupy the bearing- 16, is enggggmmgglent,17, rotatively mounted at, 18, upon e underside of the top of thebearing-box, 14, and provided with an operatin -ha.ndle '19. The longi:

tudinal extent'oft e'teeth of the gear, 16, is such that 'when the pipe,7, is fully contracted, the upper endsof the gear-teeth enter and arelocated within the bearingopening in the top ofthe bearing-box, 14, asshown in'Fig. 3-, cien't lost-motion to permit maximum expansion of thepipe, 7 without bringing the 'the-gear-mechanism operated by thusproviding for sufii hub, 15, of the gear into contact with thegear-segment 17. The gear, 16, thus remains constantly in full operativeengagement with the gear-segment, 17, under all of the varyingconditions of temperature to which the device is subjected in use.

It will be understood that the pipe, 7, is

unconfined and unrestricted as to longitudinal movement, except by theball-and-socket bearing, 9 and 10, whereby said pipe is suspended inposition so that said pipe is free .to yield to the varying conditionsof temperature without interfering with its capability for rotation, andwithout impairing the joint formed between the pipe and the steam-box.

The steam-box may be cdnnected with any convenientsource of supply,which may be steam or air under pressure. As shown, the severalsteam-boxes are connected with a common supply-pipe, 20, connecting withthe steam-space of the boiler and controlled by a valve 21.

In cleaning the boiler, the steam pressure is admitted to thesteam-boxes through the pipe, 20,. and the several nozzle-carryingpipes, 7 are rotatively moved by means of the handle, 19, causing thejets issuing from the nozzles, 8, to be projected into the draft-spaceand between and against the water-tubes to remove accumulations of soot,&c., as is well understood in the art.

. The steam-box, 11, and the bearing-box, 14, are connected together andsupported by means of stay-rods, 22, which pass through suitableapertures in said bearing-box and 1n the flanges, 24, on said steam-box,said rods being secured to said flanges and said bearing-box by meansofnuts, 25, screwed upon the threaded ends of said rods. The stay-rods,22, are embedded in the brickwork of the boiler-setting.

What I claim as new and by Letters Patent is- 1. In a device of theclass described, and in combination, a box provided "with abottom-opening; means for supplying to said box fluid under pressure; apipe rotatively mounted in said opening, said pipe and box havingcooperating ball-and-socket bearingmembers whereby said pipe issuspended from said box through the bottom opening therein; means forrotating said pipe; and nozzles carried by said pipe.

2. In a device of the class described, and in combination, a boxprovided with a bot tom-opening; means for supplying to said box fluidunder pressure; a pipe rotatively mounted in said opening, staidpipe andbox having cooperating ball-and-socket bearingmembers whereby said pipeis suspended -from said box through the bottom opening therein;.meansfor rotating said pipe; nozzles carried by said pipe; and a bearlngrodesire to secure is Y of said hub, and when said pipe isfully.

pipe, said bearing afiording tatively supporting the lower end of said afree space for maximum expansion of said pipe.

3. In a'device of the class described, andin combination, a piperotatively supported at one end; means for, supplying to said pipe fluidunder pressure; a bearing-box pro- -vided with a cylindrical opening; agearmember rotatively mounted adjacent to the outer end of. the openingin saidbearing-box and a gear and hub fixed upon theother end '7 of saidpipe,isaid hub beingadapted to 00- cupy the cylindrical opening in .saidbearcylindrical opening, I tudinally extended to properly engagesaidgear-member when said pipe is under maxi-- mg-box, and the teeth of said"car being confined within the cylindrical imensions contracted beinglocated partly within said said teeth being longimum expansion.

having coiiperating it. Ina device of the class described, andcombination, a'box provided with a bot means for supplying -'to said boxfluid under pressure; a pipe rotatively mounted in said opening; saidpipe and box ball-and-socket bearingmembers whereby said pipe issuspended from said box through the bottom-opening therein; means forrotating said pipe; nozzles carried by said. pipe; a bearing-boxprovided with a cylindrical opening; a gear member rotatively mountedadjacent to the outer end of the openingin said bearingbox; and a gearand hub fixed upon the lower end of said pipe; said hub being adapted tooccupy the cylindrical opening in said bearing-box, and the teeth ofsaid gear being v boiler-setting being 5. In a device of the classdescribed, and,

combination, a'steam-boiler and boiler-setting; a rotatoryv pipemounted'in the boilersetting; nozzles carried by said pipe, the providedopposite the respective nozzles with suitable apertures communicatingwith the draft-space of the boiler, a bearing-box for one end of saidpipe; a steam-box forming a bearing for the other end of said pipe; andsupporting members embedded in the boiler-setting and connected at.their opposite ends, respectively, with said bearing-box and saidsteambox. v i

6. In a device oi? the class described, and in combination,asteam-boiler and boilersetting; a steam-box; a pipe rotativelysuspended from said steam-box by means of a suitable'bearing abearing-box for the lower end of said pipe afl'ording a free space formaximum expansion of said plpe; supporting-members embedded in theboiler-setting and secured at their opposite ends, respectively,,tosaidsteam-box and said bearingbox'; and nozzles carried by said pipe.

In testimony, Whereof, I have hereunto set my hand this 21st day ofSeptember, 1911.

- Witnesses:

, J; E. DONSBAOH, T. JosnPH SHEEHEY,

WILLIAM BRADLEY.

to properly engage said Copies of this patent may be obtained for fivecent'seach; by addressing the (o1 nm1ss!onerof Patents,

